Strip guiding and controlling attachment for sewing machines



.I. C. RINGE.

' STRIP GUIDING AND CONTROLLING ATTACHMENT FOR SEWJNG MACHINES.

APPLICATION FILED FEB-11,1918.

Patented July 11, 1922.

3 SHEETS-SHEET I.

I ATTORNEY J. 0 RINGE.

. STRIP GUTDING AND CONTROLLING ATTACHMENT FOR SEWING MACHINES.

APPLICATTON FILED FEB-.11, 1918.

1,422,808, Patented July 11, 1922.

3 SHEETS-SHEET 2 INVENTOR v fa/m C/fiwi.

A TTORNEY I. C. RINGE.

STRIP GUIDING AND CONTROLLING ATTACHMENT FOR SEWING MACHINES.

APPLICATION FILED FEB. II, I9I8- Patented July 11, 1922.

3 SHEETSSHEET 3.

UNITED STATES} PATENT OFFICE.

JOHN C. RINGE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE SINGER MANU- FACTUBIN'G COMPANY, A CORPORATION OF NEW JERSEY.

STRIP GUIDING AND CONTROLLING ATTACHMENT FOR, SEWING MACHINES.

Specification of Letters Patent.

Patented July 11, 1922.

7 Application filed February 11, 1918. Serial No. 216,482.

To all whom it may concern:

Be it known that 1, JOHN C. RINGE, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Strip Guiding and Controlling Attachments'for Sewing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an improvement in strip-guiding and -controlling devices for use in connection with sewing machines.

The invention has for its primary object to improve that type of strip-controlling devices in which one or both edges of a strip of material are deflected from the path of the needle or needles of a sewing machine by the provision of simple and effective means for deflecting the edge or edges of the strip without movement of the strip-guide or any part thereof. Another object of this invention is to provide a strip-guiding and edge-deflecting attachment capable of being applied to any sewing machine without material alteration ofthe sewing machine or parts thereof.

In its preferred embodiment, the invention comprises a strip-guiding and -controlling device, supported by a base-plate pivotally mounted upon the cloth-plate of a sewing machine and secured against movement when in operative position. Adjustably supported by the base-plate and in advance of the needles is a strip-guide adapted to fold or hem the edges of a strip of material. Supported in bearings upon. the baseplate is a rock-shaft carrying convergently arranged edge-diverting arms terminating in smoothing fingers Y and normally positioned above the strip. ,The rock-shaft is adapted to be manually actuated to lower the edge-diverting arms into engagement with the strip between the delivery end of the strip-guide and the needles and by means of the pressure ofthe arms inclined to the direction of feed to deflect or divert. the edges of the strip from the path of the needles. I v

This strip-controlling device is particularly adapted for use in connection with the application of a strengthening and seamcovering strip to the juncture of the bib and body or nether part of overalls. To that end an edgeguide for the body garment is carried by the strip guide and an edgefolder is adjust'ably secured upon the base plate to fold and guide the edge of the bib in superposed relation with respect to the body garment.

In the accompanying drawings, Fig. 1 is a front side elevation of a sewing machine and of the improved attachment applied thereto. Fig. 2 is a plan view of the attachment and a portion of the sewing machine to which it is applied, with the edge-diverting arms in ineffective position. Fig. 3 is a plan view of a portion of the attachment indicating its position relatively to the presserfoot and needles of the sewing machine and illustrating the edge-diverting arms in effective position- Fig. 4 is a front end elevation of a portion of the sewing machine and of the improved attachment. Fig. 5 is a detail view in pers otive of one of the edge diverting arms. *ig. 6 is. an inverted view of the bib,,body and seam-covering strip illustrative of their relative arrangement and indicating the result of deflecting a portion of the seam-covering strip from the path of the needles. p

The sewing machine shown in the drawings is as usual constructed with a base 1 and an overhalnging bracket-arm 2, terminating in the head 3, in which is journaled theneedle-bar 4, carrying the spaced needles 5 and 6 and the presser-bar 7 carrying the presser-foot 8.

Mounted upon the cloth-plate 9 of the sewing machine is the strip-guiding and -controlling attachment comprising a baseplate 10 pivotally secured by means of a screw 11 and yieldingly held against the cloth-plate by means of a coiled spring 12 interposed between the base-plate of the attachment andthe head of the screw 11. The base-plate 10 is further secured upon the cloth-plate against accidental movement by means of the screw 13. Adjustably secured upon the base-plate 10 by means of screws, as 141-, and a clamping plate 15 is a slotted arm 16 sustaining the strip-guide 17 adapted to fold the edges of the strengthening or reinforcing strip 8 normally guided into the path of the needles.

Secured upon the base-plate 10 by screws, as 1.8 and 19, are spaced bearings 2Q and 21 for a rock-shaft 22. Rigidly secured upon the rock-shaft 22 in the desired positions by means of set-screws, as 23 and 24., are con vergent edge-diverting arms 25 and 26, teri minating smoothing-fingers 27 and 28 directed toward each other. The smoothingfingers 27 and 28,;are of less thickness than the convergent arms, thereby providing guiding surfaces, as' 29, for the diverted folded edges of the strip 8. Secured upon the rock-shaft by set screws, as 30, is a hand-operated member 31 normally held against the base-plate 10 by means of the flat-spring 32 to position the edge-divertarms 25 and 26 above and clear of the strip sj By lifting the member '31 against the action of the spring 32, the consequent actuation ofthe rock-shaft causesthe arms 25 and 26 to engage the strip 8 beyond the delivery end of the strip-guide and by means of the pressure of the arms inclined to the line of feed to divert the folded edges thereoiii'rom the path of the needles. It is "of coursefobvious that for Certain classes of-worlc either one of the arms 25and 26inay be omitted when it is desired to divertor deflect only one edge of a strip.

Carried by the strip-guide and preferably formed integral therewith is an edge-guide 33 adapted to guide the edge m of the body material at in superposed relation with respect to the strip a and into thepath of the needle: 6. Adjustably secured upon the baseplate 10 by means of screws, as 34:, and a clamping plate 35 is the slotted supporting arm 36 of an edge-folder 37 having an edgeturning scroll 38, more particularly for fold ing and guiding the edge b" of the bib-section Z; of overalls, in superposed relation with respect to the body material m.

"While the edge diVerting device described herein is particularly adapted vfor use in connection with applying a strengtheningand seam-covering strip to thejuncture of the bib and body sections of overalls and obviating the necessity of ripping out the stitches tor the purpose of folding in the end of the strip, it is equally applicable for other classes o't" work audit is tobeunderstood that the invention is in nowise limited to the particular class of work described.

Having thus set forth the nature of the invention, what I claim herein is 1. A strip-controlling attachment for sewing machines, comprising a strip-guide, edgediverting meansadapted to act upon an edge of a strip beyond the delivery end of said strip-guide and divert said edge from its normal course, and means independent of said strip-guide for at will rendering said edge-divertingmeans effective.

2. A strip-controlling attachment for sewing machines comprising a strip-guide adapted to fold the opposite edges of the strip, edgediverting' means constructed and arranged'to act upon thettolded edges of a strip beyond the deliveryend of said stripguide-and divert said edges from their normal course, and meansindependent of said normally held out of engagement with a.

strip,and operative connections for at will actuating'said arms to diverttheedges of the strip from their normal course. I i

5. A strip-controlling attachment for sewing machines, comprislng, a strip-guide, an

edge-diverting, arm inclined with respect to the longitudinal axis of said strip-guide, and means independent of said strip-guide for placing said arm into contact with'an edge of ai'stri'p beyond the delivery endof the strip-guide to divert the latter from its normal course. 7

A strip-controlling attachment for'sewing machines, comprising a strip-guide, and an edge-diverting arm inclined with respect to the longitudinal axis of said strip-guide and "adapted to divert anedge of said strip from its normal course,said arm including an edge-deflecting surface and a stripsmoothing surface.

7. Astrip-controlling attachment for sewing machines, comprising a strip-guide, a rock-shaft, an edge-diverting arm carried by said. rock-shaft, means for normally holding said edge-diverting arm out of operative engagement with the strip, and manually'operated means for actuating said rock-shaft to throw said edge-diverting arm into efiective 'engagementwithsaid strip.

8. A strip controlling attachment forsewing machines, comprising a strip-guide, and a movable edge-divertingarm adaptedfto act directlyupon the folded edge of a strip beyond the delivery end of said 'strip-guide'to divert said edge from itsnormal course.

9. An 7 attachment for sewing machines,

comprising a strip-guide adapt'edto fold the edges ot'a strip, a rock-shalt, an element actuated by said ro'ck-shaft and adapted to engage and deflect afolded edge of. said strip beyond the delivery end of said :stripguide, and manually operated means for actuating saidIrock-sha'ft 10. An attacl'imentfor sewing 'ma'chi-nes including, I in combination, afstrip-g'ui'de, means adapted" to be brought into action-i11 dependently ofthe strip-guide to'act upon the edge of a strip beyond the deliveryend of said strip-guide for diverting the edge of the strip from its normal course, an edgeguide, and an edge-folder.

11. An attachment for sewing machines 5 including, in combination, a strip-guide adapted to fold the edges of a strip passed therethrough, a rock-shaft, converging edgediverting arms carried by said rock-shaft and inclined with respect to the longitudinal axis of said strip-guide, manually 0perated means for actuating said rock-shaft. an edge-guide and an edge-folder.

In testimony whereof, I have signed my name to this specification.

JOHN C. RINGE. 

